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Airflow Calculation Mode🔗

The option selected here sets the airflow calculation mode:

  • Speed Density. Mass airflow will be calculated using speed density methods. The calculation is based on engine speed and Manifold Absolute Pressure (MAP) gathered from the sensors as well as the values in the Volumetric Efficiency tables. Mass Airflow Estimated is the result of these calculations.

  • Mass Airflow. Mass airflow will be measured by the Mass Airflow (MAF) sensor. Mass Airflow Calculated contains the sensor reading after processing.

  • Hybrid. The engine will transition from mass airflow mode to speed density mode (and vice versa) based on current engine speed, mass airflow, manifold absolute pressure, and/or throttle position. The direction of switching is determined by the Hybrid Switching Mode (Page 29). The Hybrid Switching Mode and the various Hybrid Threshold values determine WHEN mode switching occurs. Hybrid Mass Airflow contains the combined value.

  • AI AirFuel. Airflow will be calculated by the Neural Network trained in the AI AirFuel dialog. The main benefits of using the AI AirFuel Neural Network over other options are increased granularity when calculating airflow, as well as AI Fueling combines 4 inputs to predict the correct airflow (Engine Speed, TPS, MAF, and MAP).

Note

  • AI Airfuel requires prior knowledge before attempting (refer to AI AirFuel).
  • The result of the selected method will be used for Mass Airflow Filtered.